Oiling system



c. P. BROCKWAY.

OILING SYSTEM.

APPLICATION FILED FEB. 10. 1919.

Patented Jan. 3, 1922.

2 SHEETS-SHEET l- M m E .,V

Carl R Brock Way "-TTR C. P. BROCKWAY.

OILING SYSTEM.

APPLICATION FILED FEB. 10. 1919.

1,402,281 9 Patented Jan. 3, 1922,

2 SHEETS-SHEET 2.

IMM UI I II I 21 I I 1 k M I INVENTOR. tf'arl Broclfw B- 'ntar are.

CARL P. BROCKWAY, OF TOLEDO, OHIO, ASSIGNOR T0 INDUSTRIAL RESEARCHCORPO- RATION, OF TOLEDO, OHIO, A CORPORATION OF DELAWARE.

OILING SYSTEM.

Specification of Letters Patent.

Patented Jan. 3, 1922.

T 0 all whom izf-mag concern:

Be it known that I, CARL P. BROCKWAY, a citizen of the United States,residing at Toledo, county of Lucas, and State of Ohio, have inventedcertain new and useful Improvements in Oiling Systems, of whlch Ideclare the following to be a full, clear, and exact description.

This invention relates to improvements in oiling systems of the splashtype, and 1s intended to be employed principally for the lubrication ofinternal combustion engines.

The principal object of the invention is to provide for gas engineslubricating means of the type named, which shall be simple inconstruction, certain in operation and inexpensive to manufacture.

Another object of the invention is the provision of a pump for raisingoil from the oil reservoir to the splash pan, which pump contains butone moving part and is therefore unlikely to get out of order.

Another object of the invention 1s the provision of means for drivingthe aforesaid single moving part, which may be a gear, from the samegear that drives the valve operating mechanism.

A further object is the provision of a defleeting hood for catching anyoil that may be thrown off the periphery of the rotatlng gear anddirecting it into the splash pan.

Other objects, and objects relating to details of construction andeconomies of manufacture, will appear as I proceed with the descriptionof that embodiment of the invention which, for the purposes of thepresent application, I have illustrated in the accompanying drawings, inwhich:

Fig. I is a cross sectional View through the crank case of a singlecylinder gas engine of the sleeve vale type embodying my invention.

Fig. II is a cross sectional view taken substantially on the line IIII,Fig. I, the sleeves and their operating mechanism being omitted.

Fig. III is a cross section taken substantially 011 the line IIIIII,Fig. I.

Fig. IV is a sectional perspective view taken substantially on the lineIV-IV, Fig. II, the pump gear being omitted.

Similar reference characters refer to similar' parts throughout theviews.

In the drawings the numeral 10 indicates the crank shaft of an internalcombustion engine. It should be understood however, that the inventionis applicable to any other type of engine having a crank shaft. In thepresent case, the weight of the'cranks 11 and of the piston rod bearingscarried thereby is balanced by the counterweights 12. Both the cranks 11and the counterweights 12 are adapted to enter and pass through theupper part of a splash pan 13, as the shaft 10 rotates, thecounterweights 12 splashing at the time the piston is at its outer pointrelative to the crank shaft, and thereby securing very eflicientdistribution of the lubricating oil over the cylinder walls.

In order that lubrication of the splash system type may be of thegreatest efficiency, it is necessary that the body of oil entered by thecranks and counterweights be kept at a constant level, or practicallyso. My invention aims to provide means to accomplish this result. Theoil is prevented from rising above a certain level by means of overflowopenings 14 in the pan. It is kept constantly up to that level by thepumping means which will be presently described.

The lower portion of the crank case of the engine constitutes an oilreservoir. An internally threadedlug 15 extends upwardly into thisreservoir and carries a machine screw 16 on the top of which the pan 13is supported. The upper edge of the pan bears against the under side ofa beaded rim 17, which is preferably an integral part of the crankcasing. A firm and noiseless connection between the pan and rim 17 maybe obtained by adjustment of the screw 16, as

will be readily understood. The bottom of the opening-in the lug 15 maybe closed by a screw cap 18, if desired.

Along one side of the pan 13 I locate an inclined surface 19, flanked byside walls 20 and 21, which together form what is in effeet a pumpcasing. The oil is lifted and pushed up the inclined surface 19' bymeans of a rotary element, which I prefer to make in the form of a gear22. When the oil reaches the top of the casing, formed by the walls 20and 21 and the inclined surface 19, it is directed to the pan 1?: by theinclined surface of the rim 17, as plainly indicated in Figs. I and IV.

The gear 22 rotates more or less rapidly, depending upon the speed ofthe engine, and some of the oil which it raises will be thrown off at atangent. The greater part so thrown off is caught by the overhangingdeflecting hood 23 and directed downwardly into the pan 13.

For purposes of illustration merely I have shown my invention as appliedto an engine of the sliding sleeve valve type. The sleeves 24 and 25 arearranged to be reciprocated by means of small piston rods 26 and 27pivoted to lugs 28 and 29 integral with the respective sleeves. Thepiston rod 26 is driven by an eccentric 30, and the piston rod 27 by asimilar eccentric not shown in the drawing. The eccentric shaft isrotated by means of a gear 31, which meshes with a gear 32 upon thecrank shaft, the latter gear being also in mesh with the gear 22, whichconstitutes the single moving element of the pump of my invention. Thegear 22 1s mounted upon a stub shaft 33 journaled in the crank case.

In the crank shaft bearings are located oil passages 34:, 35 and 3G, bymeans of which oil splashed up by the cranks or counterweights isdirected to the main bearings, and thence back into the oil reservoir.

The operation of my invention will be obvious. When the engine isstarted the gear 22 is rotated by the gear 32 upon the crank shaft andraises oil from the oil reservoir by pushing it up'the inclined surface19 and throwing particles against the deflecting hood 23, all of whichoil 'finds its way down the inclined rim 17 into the pan 13. As soon asthe level of oil in the pan is of sufficient height it is entered by themoving cranks 11 and counterweights 12 and splashed up to the cylinder,valve sleeves, and other moving parts of the engine. Should the oil inthe pan not be splashed out rapidly enough to maintain the proper level,the overflow openings 14 will prevent it from rising too high. Thus, aconstant circulation of oil is maintained, and just enough oil is keptin the pan to accomplish efficient oiling.

I am aware that the particular embodiment of my invention abovedescribed and illustrated in the accompanying drawings is susceptible ofconsiderable variation without departing from the spirit thereof, andtherefore I desire to claim my invention broadly as well asspecifically, as indicated by the appended claims.

I claim as my invention:

1. In combination with an engine having a crank shaft and piston, asplash pan, an oil reservoir below the level of said pan, an inclinedsurface extending upwardly from the reservoir to a point above the edgeof the pan, vertical walls at the sides of said surface, a rotatinelement fitting closely between said wal s for forcing oil up saidinclined surface into said pan and means he cured to the crank shaft forentering said splash pan when the piston is at the outer limit of itsmovement.

2. In combination with an engine having a crank shaft and piston, asplash pan, an oil reservoir below the level of said pan, an inclinedsurface extending upwardly from the reservoir to a point above the edgeof the pan, vertical walls at the sides of said surface, a rotating gearfitting closely between said walls for forcing oil up said inclinedsurface and into said pan and splash means secured to the crank shaftadapted to enter said splash pan when the piston is at the outer limitof its movement relative to the crank shaft.

3. In combination with an engine having a crank shaft and piston, asplash pan, an oil reservoir below the level of said pan, an inclinedsurface extending upwardly from the reservoir to a point above the edgeof the pan, vertical walls at the sides of said surface, a gear drivenfrom the said crank shaft fitting closely between said walls for forcingoil up said inclined surface, means for guiding said raised oil intosaid pan and additional means, including crank arms secured to the crankshaft for entering said splash pan when the engine piston is at theouter limit of its movement relative to the crank shaft.

l. In combination with an engine having a crank shaft and piston,asplash pan, an oil reservoir below the level of said pan, an inclinedsurface extending upwardly from the reservoir to a point above the edgeof the pan, side walls for said inclined surface, a rotating gearextending into and approximately filling the space between said sidewalls and inclined surface for forcing oil up said inclined surface,means for guiding said raised oil into said pan and additional meansincluding crank arms secured to the crank shaft for entering said splashpan when the engine piston is at the outer limit of its movementrelative to the crank shaft.

5. In combination with an engine having a crank shaft and piston, asplash pan, an oil reservoir below the level of said pan, an inclinedsurface extending upwardly from the reservoir to a point above the edgeof the pan, vertical walls at the sides of said sur face, a rotatingelement fitting closely be tween said walls for forcing oil up saidinclined surface, a deflecting hood arranged to catch the oil thrownfrom said rotating element and guide it into said pan and splashingmeans secured to the crank shaft adapted to enter said splash pan whenthe engine piston is at the outer limit of its movement relative to thecrank shaft.

6. In combination with an engine havinga crank shaft, a splash pan, anoil reservoir below the level of said pan, an inclined surforcing oil upsaid inclined surface, and a deflecting hood arranged to catch the oilthrown from said rotating gear and-guide it into said pan.

7. In combination with an engine having a crank shaft, a splash pan,an'oil reservoir below the level of said pan, an inclined surfaceextending upwardly from the reservoir to a point above the edge of thepan, vertical walls at the sides of said surface, a gear fitting closelybetween said walls and driven from the crank shaft for forcingoil upsaid inclined surface, a deflecting hood arranged to catch the oilthrown from said gear, and means for guiding the oil'raised by the gearand caught by the deflecting hood, and directiiig it into said pan.

8. n combination with an engine having a crank shaft, valve operatingmechanism,

a gear mounted upon. the crank shaft for driving said valveoperatingmeohanism, a splash pan, an oil reservoir below the level ofsaid pan, an inclined surface extending upwardly from the reservoir to apoint above the edge of the pan, vertical walls at the sides of saidsurface, a rotating gear in force oil up said inclined surface, adeflecting hood arranged tocatch the oil thrown from said last namedgear, and means for guiding the oil raised by the gear and caught by thedeflecting hood and directing it into said pan. v

9. In combination with an engine having a crank shaft, a splash pan, anoil reservoir below the /level of 'said pan, an inclined surfaceextending upwardly from the reservoir to a point above the edge of thepan, side walls for said inclined surface, a rotating disc extendin intoand approximately filling the space between said s1de walls and inclinedsurface for forcing oil up said incli-ned surface, and a deflecting hoodarranged to catch the oil thrown from said rotating disc and guide itinto said pan.

In testimony whereof, I aflix my signature.

CARL P. BROCKWAY.

